Jim's Plumbing


Rainwater Tank Installation

rain falling on a roof

Here at Jim’s Plumbing, we are specialists in connecting your rainwater tanks and designing rainwater harvesting systems. This includes the associated pipework and even water pump installation and replacement. If you have a rainwater tank that you would like installed we are able to do all the necessary pipework including running the water from the tank to the house so that your rainwater collection system works properly.

We can also assist with running stormwater pipework from the roof, garage or home into the water tank. Jim’s Plumbing is also able to supply any of the associated stormwater pipework necessary, or stormwater pipe relining if required.

Rainwater Tanks Save Water

The best thing about rain water is that it is free. These days pumps are so energy efficient that it is more than worthwhile to have them installed. You can then do more with your rainwater than just feeding a watering system. Not many people have the time or the energy to fill watering cans and water the garden. To really save water you need to plumb your rainwater tanks to the laundry or, at the very least, the toilet. Because although rain water is free, it is not free from contamination. Rats, possums and birds all spend time on your roof. Their faeces makes its way into the gutters and washes into the water tank. This means that the water in rain water tanks is often not fit to drink or brush your teeth with.  It is not news to rural households that rainwater can be used for everything without any problems, but if you have access to clean mains water, the small amount needed for cooking and drinking should be sourced from there to be on the safe side.

Best Way to Save Water

The best way to save water in your home is to only use the potable mains water supply for drinking, cooking and in the bathroom.  That leaves the garden, the toilet and the laundry.  Back in the day it was common to plumb rainwater tanks into the laundry so that you could fill the laundry trough with rain water for soaking or rinsing. It wasn’t the best solution because unless the rain water tank is unusually elevated on a solid platform the water flow at the trough level is not fantastic.  That’s part of the reason no one bothered plumbing rainwater into the cistern.  The water pressure isn’t good enough and mains water in our cities was cheap and plentiful. But these days good pumps make using rain water a much more practical option. And modern residential rainwater collection systems are much better than they used to be.

Watering System

Improvements to the toilet cistern over the last 20 years saves the average household thousands of litres of water. Dual flush, an Australian invention, has dramatically reduced the amount of drinking water wasted flushing toilets.  It makes even more sense to use clean but undrinkable water for the same purpose.  That way you don’t waste any of our precious potable water.  So plumbing a rainwater tank with a pump into the cistern is a good move.  And that pump can make using the water for the garden so much easier as well. The tank can run a watering system that irrigates your plants with good quality salt free water that has the added bonus of dissolved organic material.

Automatic Diversion from Rainwater Tank

The question that comes up with this sort of system is what happens if it doesn’t rain all summer and the rainwater runs out?  The answer is to have a diversion device that senses when the rain water from the water tank has run out.  It then automatically switches to the mains water.  The last thing you want is to flush the toilet and have nothing happen.

Washing Machines

With modern washing machines heating their own water, there is really no reason why you can’t plumb rainwater from your rain water tanks to the laundry, attach a washing machine and wash your clothes.  Because rain water is soft, it is perfect for washing clothes and is also good for your washing machine.

How Much Money do Water Tanks Save?

Like solar hot water or solar panels and batteries the initial cost for tank installation can be a bit daunting.   But saving large amounts of water over time in an environment where water prices will inevitably increase is probably a wise investment.  It might take as much as 10 years to pay off, but rainwater collection systems last much longer than that.  There are other considerations too.  With droughts and water restrictions becoming the norm, conserving water is not just about what it costs.  Installing a rainwater tank is simply an environmentally friendly thing to do.

Rainwater Tank System

Although a rain water tank install is an additional cost, it is not wildly expensive.  Government rebates are available and you can go to this site – www.yourenergysavings.gov.au – to find out details.   Rain water tanks and rainwater collection systems are continually developing and improving.   The water tanks are now made of plastic instead of corrugated iron, so they last much longer.  Gone are the days of rusty water and collapsing water tanks.  Along with a better seal or mesh that prevents the dreaded mosquitoes from entering and breeding, modern rainwater tanks come in all sorts of shapes and sizes to fit into tight places.  There are even underground rainwater collection tanks for new builds that truly future proof the house by storing very substantial amounts of water.

How to Connect a Water Tank

Connecting a rain water tank is not as easy as it looks.  The tank itself is incredibly heavy and has to have the right foundations.  And the stormwater pipe has to enter the water tank at the correct angle and be properly sealed.  It really is worth it to have a licensed plumber like Jim’s do the job.

Rainwater Repairs

Jim’s Plumbing can also repair rain water tank pipework should it become burst or damaged. Over time, it is quite common for tree roots to block the stormwater pipes. We have the equipment needed to clear blockages.  Pumps and diversion systems can also go wrong and Jim’s has the expertise to put them right.

The work that we do with rainwater tanks varies greatly going from the normal domestic sized tank right through to larger tanks that may be supplying numerous properties.

We can design and install a rainwater harvesting system at your home that will leave you saving both money and the environment.


15 Years of Service
15 Years of Service